EP1935335A4 - Non-linear signal separation method using non-linear state space projection method - Google Patents

Non-linear signal separation method using non-linear state space projection method

Info

Publication number
EP1935335A4
EP1935335A4 EP06782890A EP06782890A EP1935335A4 EP 1935335 A4 EP1935335 A4 EP 1935335A4 EP 06782890 A EP06782890 A EP 06782890A EP 06782890 A EP06782890 A EP 06782890A EP 1935335 A4 EP1935335 A4 EP 1935335A4
Authority
EP
European Patent Office
Prior art keywords
linear
signal separation
state space
space projection
separation method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06782890A
Other languages
German (de)
French (fr)
Other versions
EP1935335B1 (en
EP1935335A1 (en
Inventor
Yoshitaka Kimura
Shinichi Chida
Mitsuyuki Nakao
Kunihiro Okamura
Takuya Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tohoku University NUC
Tohoku Techno Arch Co Ltd
Original Assignee
Tohoku University NUC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tohoku University NUC filed Critical Tohoku University NUC
Publication of EP1935335A1 publication Critical patent/EP1935335A1/en
Publication of EP1935335A4 publication Critical patent/EP1935335A4/en
Application granted granted Critical
Publication of EP1935335B1 publication Critical patent/EP1935335B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/43—Detecting, measuring or recording for evaluating the reproductive systems
    • A61B5/4306—Detecting, measuring or recording for evaluating the reproductive systems for evaluating the female reproductive systems, e.g. gynaecological evaluations
    • A61B5/4343—Pregnancy and labour monitoring, e.g. for labour onset detection
    • A61B5/4362—Assessing foetal parameters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/344—Foetal cardiography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/346—Analysis of electrocardiograms
    • A61B5/349—Detecting specific parameters of the electrocardiograph cycle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
    • G06F2218/02—Preprocessing
    • G06F2218/04—Denoising
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
    • G06F2218/12—Classification; Matching
    • G06F2218/16—Classification; Matching by matching signal segments
    • G06F2218/18—Classification; Matching by matching signal segments by plotting the signal segments against each other, e.g. analysing scattergrams

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Cardiology (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Psychiatry (AREA)
  • Physiology (AREA)
  • Pediatric Medicine (AREA)
  • Pregnancy & Childbirth (AREA)
  • Gynecology & Obstetrics (AREA)
  • Reproductive Health (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
EP06782890.5A 2005-09-05 2006-08-22 Non-linear signal separation method using non-linear state space projection method Active EP1935335B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005256300 2005-09-05
PCT/JP2006/316386 WO2007029485A1 (en) 2005-09-05 2006-08-22 Non-linear signal separation method using non-linear state space projection method

Publications (3)

Publication Number Publication Date
EP1935335A1 EP1935335A1 (en) 2008-06-25
EP1935335A4 true EP1935335A4 (en) 2010-01-13
EP1935335B1 EP1935335B1 (en) 2019-05-08

Family

ID=37835609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06782890.5A Active EP1935335B1 (en) 2005-09-05 2006-08-22 Non-linear signal separation method using non-linear state space projection method

Country Status (6)

Country Link
US (1) US8116857B2 (en)
EP (1) EP1935335B1 (en)
JP (1) JP4792584B2 (en)
CN (1) CN101257843A (en)
AU (1) AU2006288486A1 (en)
WO (1) WO2007029485A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101449973B (en) 2007-12-04 2010-09-29 深圳迈瑞生物医疗电子股份有限公司 Judgment index generation method and device for cardiac interference signal identification
DE102008015832B4 (en) 2008-03-27 2013-08-22 Fresenius Medical Care Deutschland Gmbh Method and device for monitoring a vascular access and extracorporeal blood treatment device with a device for monitoring a vascular access
CN102204817B (en) * 2011-05-31 2013-03-27 重庆大学 Dual-lead device and method for extracting fetal electrocardiosignals
EP3043699B1 (en) * 2013-09-09 2022-12-07 Koninklijke Philips N.V. Fetal heart rate extraction from maternal abdominal ecg recordings
EP3062694A1 (en) 2013-11-01 2016-09-07 Boston Scientific Scimed, Inc. Cardiac mapping using latency interpolation
JP2017509399A (en) * 2014-03-11 2017-04-06 ボストン サイエンティフィック サイムド，インコーポレイテッドＢｏｓｔｏｎ Ｓｃｉｅｎｔｉｆｉｃ Ｓｃｉｍｅｄ，Ｉｎｃ． Medical device for mapping heart tissue
WO2015145624A1 (en) * 2014-03-26 2015-10-01 国立大学法人東北大学 Fetal state estimation device, fetal state estimation method, and fetal state estimation program
CN104027105B (en) * 2014-04-23 2016-08-24 河南科技大学 A kind of novel female fetal electrocardiogram separation method
JP6616960B2 (en) * 2015-04-20 2019-12-04 フクダ電子株式会社 Biological signal processing apparatus and control method thereof
US11022633B2 (en) * 2016-05-11 2021-06-01 Mcmaster University Enhanced system and method for conducting PCA analysis on data signals
KR102605896B1 (en) 2016-09-20 2023-11-23 삼성전자주식회사 Apparatus and method for extracting bio-signal feature, apparatus for detecting bio-information and weareable device
CN106963360B (en) * 2017-03-06 2019-12-03 四川大学 A kind of eigenmatrix design method for electrocardio identification
US10890640B2 (en) * 2019-03-18 2021-01-12 Uih America, Inc. Systems and methods for signal representation determination in magnetic resonance imaging

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU758778B2 (en) 1999-03-15 2003-03-27 Johns Hopkins University, The Apparatus and method for non-invasive, passive fetal heart monitoring
CN1556687A (en) * 2001-09-21 2004-12-22 Nonlinear noise reduction for magnetocardiograms using wavelet transforms
JP2005023982A (en) 2003-07-01 2005-01-27 Mitsui Chemicals Inc Heat fusion method for pipe and joint made of thermoplastic resin, and heater and joint
JP4590554B2 (en) * 2005-01-31 2010-12-01 国立大学法人東北大学 ECG signal processing method and ECG signal processing apparatus

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
ALI KHAMENE ET AL: "A New Method for the Extraction of Fetal ECG from the Composite Abdominal Signal", IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 47, no. 4, 1 April 2000 (2000-04-01), XP011006874, ISSN: 0018-9294 *
AL-NASHASH H ET AL: "A Novel Technique for the Extraction of Fetal ECG Using Polynomial Networks", IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 52, no. 6, 1 June 2005 (2005-06-01), pages 1148 - 1152, XP011132102, ISSN: 0018-9294 *
KOTAS M: "Projective Filtering of Time-Aligned ECG Beats", IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 51, no. 7, 1 July 2004 (2004-07-01), pages 1129 - 1139, XP011114064, ISSN: 0018-9294 *
SCHREIBER T ET AL: "NONLINEAR NOISE REDUCTION FOR ELECTROCARDIOGRAMS", CHAOS, AMERICAN INSTITUTE OF PHYSICS, WOODBURY, NY, US, vol. 6, no. 1, 1 March 1996 (1996-03-01), pages 87 - 92, XP008049469, ISSN: 1054-1500 *
See also references of WO2007029485A1 *
T. SCHREIBER ET AL: "NONLINEAR PROJECTIVE FILTERING IN A DATA STREAM", 5 March 1998 (1998-03-05), pages 1 - 8, XP002557345, Retrieved from the Internet <URL:http://arxiv.org/abs/cheo-dyn/9803008> [retrieved on 20091124] *

Also Published As

Publication number Publication date
US8116857B2 (en) 2012-02-14
CN101257843A (en) 2008-09-03
EP1935335B1 (en) 2019-05-08
JP4792584B2 (en) 2011-10-12
US20090270713A1 (en) 2009-10-29
JPWO2007029485A1 (en) 2009-03-19
AU2006288486A1 (en) 2007-03-15
WO2007029485A1 (en) 2007-03-15
EP1935335A1 (en) 2008-06-25

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